[CVE-2022-22577] Possible XSS Vulnerability in Action Pack

There is a possible XSS vulnerability in Rails / Action Pack. This vulnerability has been assigned the CVE identifier CVE-2022-22577.

  • Versions Affected: >= 5.2.0
  • Not affected: < 5.2.0
  • Fixed Versions: 7.0.2.4, 6.1.5.1, 6.0.4.8, 5.2.7.1

Impact

CSP headers were only sent along with responses that Rails considered as “HTML” responses. This left API requests without CSP headers, which could possibly expose users to XSS attacks.

Releases

The FIXED releases are available at the normal locations.

Workarounds

Set a CSP for your API responses manually.

Patches

To aid users who aren’t able to upgrade immediately we have provided patches for the two supported release series. They are in git-am format and consist of a single changeset.

  • 5-2-csp-xss.patch - Patch for 5.2 series
  • 6-0-csp-xss.patch - Patch for 6.0 series
  • 6-1-csp-xss.patch - Patch for 6.1 series
  • 7-0-csp-xss.patch - Patch for 7.0 series

Credits

Thank you Tim Wade for making the patch, and thank you thorsteneckel for reporting this issue.

5-2-csp-xss.patch (3.2 KB) 6-0-csp-xss.patch (3.1 KB) 6-1-csp-xss.patch (3.2 KB) 7-0-csp-xss.patch (3.1 KB)